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US 2017/0360490 A1Published application
Medical fastener
AssigneeRTG Scientific, LLC
InventorGary Jack REED
Life of this patent
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Abstract
A dual-start fastener is disclosed having two threads helically wound about its shaft. The thread tooth profile (in section) constitutes substantially parallel upper and lower facets on each thread flank. A first thread has a crest diameter greater than a second thread. A distal end of the fastener includes self-tapping cutters formed on the threads which force shards of bone to advance into shallow troughs adjacent the cutters for subsequent resorption by adjacent osseous tissue.
Claims13
1-16. (canceled)
A medical fastener, comprising:
- an elongate shaft having a proximal end and a distal end,
- a first thread helically wound around said shaft, said first thread having facets defining surfaces as upper and lower flanks, said upper and lower flanks oriented in substantially parallel relationship,
- a self-tapping cutter having a talon shaped cutting element with a sharp leading edge and a blunted trailing edge and a trough operatively communicating therewith to receive bone shards therein.
Dependencies are inferred from the claim text.